Should I tie my tubes?

Murphy ā€¢ Married with three kids!! šŸ˜Š I`m 29 years old and currently in school, almost time to graduate.
I have three children and major health problems. I am almost 30 years old and I would love to have just one more child but mitigating circumstances are limiting my ability to have another child. I've been married for a little over two years and this is my husband's first child so I have been contemplating I'm not having anymore. I am scheduled to get my tubes tied in a few days but it is a very hard decision and it's permanent so if I can get some input on whether to do it or not or some advice or support that be great thank you. šŸ˜Š